The components in question were on Kraken K3 Scout USVs, The Telegraph reports, citing an unnamed defense source familiar with the matter. The K3 Scout USVs had been acquired under a deal worth around $16.2 million (£12 million) and had entered Royal Navy service in March. 47 Commando is one of the U.K. operators of the Kraken K3 Scout. RN personnel launch Kraken K3 Scout USV from the slipway in Portsmouth Historic Dockyard yesterday. The USV chosen was the Kraken K3 Scout.